note 98966 added to function.strtotime

Don't be tempted to use strtotime to compare dates: e.g. <?php // Calculate the difference in days. $date1 = strtotime(2010-10-10); $date2 = strtotime(2011-12-01); $daysDiff = ($date2 - $date1)/(24 * 60 * 60); // Which is the latest? if ($date2 > $date1) { echo "$date2 is later than $date1"; } ?> If you do, your code will be susceptible to the 2038 bug. (This is because Unix timestamps cannot deal with dates before Fri, 13 Dec 1901 20:45:54 UTC and after Tue, 19 Jan 2038 03:14:07 UTC). Instead convert your dates to Julian dates, and compare those. (For example use the function GregorianToJD which has been available since PHP4). ---- Server IP: 213.229.106.14 Probable Submitter: 163.1.222.66 ---- Manual Page -- http://www.php.net/manual/en/function.strtotime.php Edit -- https://master.php.net/note/edit/98966 Del: integrated -- https://master.php.net/note/delete/98966/integrated Del: useless -- https://master.php.net/note/delete/98966/useless Del: bad code -- https://master.php.net/note/delete/98966/bad+code Del: spam -- https://master.php.net/note/delete/98966/spam Del: non-english -- https://master.php.net/note/delete/98966/non-english Del: in docs -- https://master.php.net/note/delete/98966/in+docs Del: other reasons-- https://master.php.net/note/delete/98966 Reject -- https://master.php.net/note/reject/98966 Search -- https://master.php.net/manage/user-notes.php